Remove stray TODO

The DB creation operates with a DB lock, so that code can't run while another process is filling the DB; it would block on obtaining the lock a few lines prior instead.

qwarc/__init__.py

@@ -377,8 +377,6 @@ class QWARC:
 							continue
 						else:
 							# Really nothing to do anymore
-							#TODO: Another process may be running create_db, in which case we'd still want to wait...
-							# create_db could insert a dummy item which is marked as done when the DB is ready
 							cursor.execute('COMMIT')
 							break
 					id, itemType, itemValue, status = result